Harold P. Henderson Books

Questions and Answers in General Surgery

By Harold P. Henderson, M. J. Kelly

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Ernest Vandiver, governor of Georgia

By Harold P. Henderson

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"Ernest Vandiver was elected governor of the state of Georgia in 1958 on a platform of fiscal conservatism and steadfast resistance to desegregation. Having vowed to defend Georgia's segregated soc...

Georgia governors in an age of change

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Georgia governors in an age of change

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Ernest Vandiver Governor of Georgia

By Harold Paulk Henderson

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The politics of change in Georgia

By Harold P. Henderson

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.